2005/11/30 by Gijs Verdoes Kleijn, P. T. de Zeeuw, Tim de Zeeuw
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Ellipse #Galaxies: Formation, Evolution, Phenomena #Galaxy #Geometry #Jet (fluid) #Mechanics #Orientation (vector space) #Perpendicular #Physics #Position angle #Radio Astronomy Observations and Technology #Radio galaxy #astro-ph
paper · pdf · doi:10.1016/j.newar.2006.06.031
published in New Astronomy Reviews 50(9-10), 814-816 (Elsevier BV) · 4pages, submitted to "QSO Hosts: Evolution and Environment", P.D. Barthel, D.B. Sanders, eds., August 2005, New Astr. Rev. Detailed description of analysis available in 2005 A&A 435,43 (astro-ph/0502075)
arxiv created 2005/11/30 · openalex publication_date 2006/08/07 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine the relative orientations of radio jets, central dust and stars in low-power (i.e., FR I and FR I/II) radio galaxies. We use the position angles of jet and dust to constrain the three-dimensional angle θ\rm DJ between jet and dust. For galaxies with filamentary dust 'lanes' (which tend to be misaligned with the galaxy major axis) the jet is approximately perpendicular to the dust structure, while for galaxies with elliptical dust distributions (typically aligned with the galaxy major axis) there is a much wider distribution of θ\rm DJ. nThe dust ellipses are consistent with being nearly circular thin disks viewed at random viewing angles. The lanes are likely warped, unsettled dust structures. We consider two scenarios to explain the dust/jet orientation dichotomy.